Install Catia V5 R21 On Windows 11 Fixed [ 2026 Update ]

High-DPI scaling conflicts on modern high-resolution screens.

Navigate to Tools > Options > General > Display > Performance and lower the or turn off hardware acceleration. install catia v5 r21 on windows 11 fixed

If your CATIA source files are split across multiple archives (such as zip 1 and zip 2), do not extract them separately. Highlight both folders, right-click, and use a program like WinRAR or 7-Zip to select Extract Here so they merge natively into a single cohesive installer directory. Apply Compatibility Mode to Setup: High-DPI scaling conflicts on modern high-resolution screens

Check the box at the bottom for . Click Apply and OK . install catia v5 r21 on windows 11 fixed